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Finding the Fourth Proportional to 277.34, 382.63 and 172.39

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Solution

The fourth proportional to 277.34, 382.63 and 172.39 is: 237.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.34 : 382.63 = 172.39 : x
  2. Step 2: Convert to fraction form
    277.34/382.63 = 172.39/x
  3. Step 3: Cross multiply
    277.34x = 382.63 × 172.39
  4. Step 4: Simplify right side
    277.34x = 65,958.81
  5. Step 5: Solve for x
    x = 65,958.81/277.34
  6. Step 6: Final answer
    x = 237.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.